Cellphones don’t cause cancer because they don’t emit enough energy to break molecular bonds inside cells, reports Scientific American. “In fact, if the bonds holding the key molecules of life together could be broken at the energy levels of cell phones, there would be no life at all because the various natural sources of energy from the environment would prevent such bonds from ever forming in the first place.”

You don’t have to believe everything customers say to you when you’re a customer service rep. You don’t even have to actually care. But if you can’t stop yourself from slipping in phrases like “not my problem” when you’re helping out a customer, maybe you need to try a different career. Like, say, parole officer.